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Auto Focus Testing In Lab - Sony A7rII, Sigma Lenses, LA-EA4 Lens Adapter

In this quick video I wanted to show you live, the auto focus abilities with Sony LAEA4 lens adapter using the Sony A7rII and Sigma A-Mount 50mm f/1.4 Art Lens in particular. This lens did not work with the LAEA3 as seen in the last video here:    • Auto Focus Testing In Lab - Sony A7rI...   Hello there, I’m a dedicated Sony camera and lens reviewer, tester, and teacher. I test the equipment in both Lab scene and also using my day to day life situations. I also try and help people with questions and concerns as it relates to using Sony cameras, and/or photography, video or post processing images. Please be sure to subscribe, so you get up to date info on the latest new reviews, tutorials and more.. Have a great day and thanks again for checking out my channel! Learn more about the Sony A7r Mark II @ BHPhoto: http://www.bhphotovideo.com/c/product... Learn More about the Sigma 50mm f/1.4 Art lens @ BHPhoto: http://www.bhphotovideo.com/c/product... Learn more about the Sony LAEA4 Lens Adapter @ BHPhoto: http://www.bhphotovideo.com/c/product... Main Website: http://sonyalphalab.com/ SonyAlphaLab - Forums: http://sonyalphalab.com/forums/forum.php Check out my Google+ "SonyAlphaLab" Community for the latest Sony News, Rumors, Reviews, Tutorials, Aweosme Sony user photography and Much more: https://plus.google.com/u/0/communiti... New Support Website Page: https://www.patreon.com/SonyAlphaLab?... Buy Your Gear Here: http://sonyalphalab.com/forums/showth...